There are 2.5 cm in one inch. There are 12 inches in one foot. There are 5280 feet in one mile. Thus 63360 (inches in a mile) times 2.5 equals number of cm in a mile (158400). Now divide by 100 meters (and the 1000 miles and 1000 m/km will cancel) FINALLY that is 1584 Km <3 lol